きっぱり の訳語→ absolutely assertion boldly determined firmly instantly outright sharply stoutly tersely
きびしい の訳語→ acid carefully clear-cut disagreeable grim high intense real severe sharp terrible
厳しい の訳語→ acerbic acrimonious adamantine astringent awful difficult firm hard hard-time harsh heavy hurt implacable maximum monastic peppery precarious restrain rigorous rocky stern strict torrid trying